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Finding the Fourth Proportional to 120,068.08, 165,693.96 and 67,076.08

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Solution

The fourth proportional to 120,068.08, 165,693.96 and 67,076.08 is: 92,565.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,068.08 : 165,693.96 = 67,076.08 : x
  2. Step 2: Convert to fraction form
    120,068.08/165,693.96 = 67,076.08/x
  3. Step 3: Cross multiply
    120,068.08x = 165,693.96 × 67,076.08
  4. Step 4: Simplify right side
    120,068.08x = 11,114,101,316.48
  5. Step 5: Solve for x
    x = 11,114,101,316.48/120,068.08
  6. Step 6: Final answer
    x = 92,565.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.